Articles about text-to-SQL

May 28, 2026 · Bhanu Pratap Singh · AI & Machine Learning

Ontology-Driven NL-to-SQL Architecture: BigQuery, Gemini, Looker, and Semantic Guardrails

Google's BigQuery + Gemini text-to-SQL guidance exposes the core problem every team hits: LLMs generate syntactically valid SQL that is semantically wrong. The fix is not a bigger prompt — it is a governed semantic layer that maps business language to schema, metrics, joins, filters, and entitlements.

Apr 26, 2026 · Bhanu Pratap Singh · Opinionated AI Briefs

NL-to-SQL Deep Dive: Schema Linking, Table Clustering, Volumetric Routing, and Why ReAct Changes Everything

Most NL-to-SQL demos work on toy schemas with 5 tables. Real databases have 500. This deep dive covers schema linking, table clustering, volumetric routing, domain bootstrapping, ReAct reasoning loops, SQL safety, and what benchmark scores actually tell you — with a detailed walk-through of a production-grade reasoning agent.